问题
单项选择题
维持机体稳态的重要反馈方式是( )
A．正反馈
B．负反馈
C．反馈
D．自动反馈
答案
参考答案：B
解析： 本题主要考查的知识点是负反馈调节的意义。
[要点透析] 在人体内，负反馈极为多见，且极其重要，其意义在于维持机体生理功能的相对稳定。
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维持机体稳态的重要反馈方式是( )
A．正反馈
B．负反馈
C．反馈
D．自动反馈
参考答案：B
解析： 本题主要考查的知识点是负反馈调节的意义。
[要点透析] 在人体内，负反馈极为多见，且极其重要，其意义在于维持机体生理功能的相对稳定。
 The other day my daughter finally had a day off work. We decided to go out in the 16 for the time, together! It was an enjoyable experience. Then a surprising thing happened. She turned and asked, “Hey, Dad, can I 17 the boat?” I had a look of fear in my eyes 18 the boat can be driven at a very high speed and can be turned over very quickly. However, I gave the driving seat to her and began 19 her how to properly control the boat. I told her to remain calm as I had completely believed in her. It can be both frightening and exciting when your child tries doing something, even if it’s a small thing, you still feel like they are growing up too fast and it’s out of your 20 . Time goes by so quickly, so it’s 21 to spend time with your kids, with your family. It is an amazing feeling to experience as their confidence grows. In every situation if you relax, take your time, and show confidence, you will have a great 22 . We not only had a 23 morning on the boat, but also invited our little neighbour who is 8 years old and put him in the 24 right between us. As I drove at top speed, making sudden turns and jumping over the waves, all I could hear was my neighbour 25 and screaming at the top of his voice because he was having such a great time.
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